Custom MMIC

300 Apollo Drive Chelmsford, MA 01824 Phone (978) 467-4290 Fax (978) 467-4294

Visit us online at www.custommmic.com

The CMD258 is a high IP3 I/Q mixer die that

can be used as either an image reject mixer or a

single sideband upconverter.

The CMD258

utilizes two double balanced mixer cells and a

90 degree hybrid.

An external IF hybrid is

needed to complete the image rejection.

The

CMD258 offers full passivation for increased

reliability and moisture protection.

► Low conversion loss

► High IP3

► Image rejection: 29 dB

► Wide IF bandwidth

► Small die size

Features

Description

Functional Block Diagram

Parameter

Min

Typ

Max

Units

Frequency Range, RF & LO

7.5 - 13

GHz

Frequency Range, IF

DC

3.5

GHz

Conversion Loss (as IRM)

5.5

dB

Image Rejection

29

dB

LO to RF Isolation

38

dB

LO to IF Isolation

20

dB

Input P1dB

14.5

dBm

Input IP3

25

dBm

Unless otherwise noted, all measurements performed as a downconverter, IF = 100 MHz

ver 1.1 0719

CMD258

7.5-13 GHz High IP3 I/Q Mixer

1

3

4

2

-90

0

RF

LO

IF2

IF1